drivers: wifi: siwx91x: SNTP NetStack Application protocol

To support the SiWx917 SNTP  Network Stack Application protocol
offloading, we need to integrate the Silicon Labs APIs,
so adding the corresponding source files and include files
in the kconfig and CMakelist

Co-authored-by: Swami Das Nampalli <swami.das@silabs.com>
Signed-off-by: Swami Das Nampalli <swami.das@silabs.com>
Signed-off-by: Rahul Gurram <rahul.gurram@silabs.com>

Author: ragurram26

drivers/wifi/siwx91x/Kconfig.siwx91x

@@ -71,6 +71,15 @@ config WIFI_SILABS_SIWX91X_LIMIT_PACKET_BUF_PER_STA
 	  would be buffered when the STA is in Power Save (PS) mode.
 	  This helps manage buffer usage and ensures efficient packet handling.
 
+config WIFI_SILABS_SIWX91X_SNTP_CLIENT
+	bool "Offloaded implementation of SNTP client"
+	help
+	  Enable this option to allow to use the SNTP (Simple Network Time
+	  protocol) implementation provided by the Network Co-Processor present
+	  on SiWx91x series. This implementation usually require less resources
+	  than the Zephyr one. See also sl_sntp.h in Silabs HAL for more
+	  information about the API.
+
 config WIFI_SILABS_SIWX91X_ENABLE_ROAMING
 	bool "WiFi roaming support"
 	default y

modules/hal_silabs/wiseconnect/CMakeLists.txt

@@ -110,6 +110,18 @@ if(CONFIG_WIFI_SILABS_SIWX91X)
   )
 endif() # CONFIG_WIFI_SILABS_SIWX91X
 
+if(CONFIG_WIFI_SILABS_SIWX91X_NET_STACK_OFFLOAD)
+  zephyr_compile_definitions_ifdef(CONFIG_WIFI_SILABS_SIWX91X_SNTP_CLIENT
+    SLI_SI91X_INTERNAL_SNTP_CLIENT
+  )
+  zephyr_include_directories_ifdef(CONFIG_WIFI_SILABS_SIWX91X_SNTP_CLIENT
+    ${WISECONNECT_DIR}/components/service/sntp/inc
+    ${WISECONNECT_DIR}/components/device/silabs/si91x/wireless/inc/sntp
+  )
+  zephyr_library_sources_ifdef(CONFIG_WIFI_SILABS_SIWX91X_SNTP_CLIENT
+    ${WISECONNECT_DIR}/components/service/sntp/si91x/sl_sntp.c
+  )
+endif() # CONFIG_WIFI_SILABS_SIWX91X_NET_STACK_OFFLOAD
 if(CONFIG_BT_SILABS_SIWX91X)
   zephyr_compile_definitions(
     SLI_SI91X_ENABLE_BLE

soc/silabs/silabs_siwx91x/siwg917/nwp.c

@@ -127,6 +127,9 @@ static void siwx91x_configure_network_stack(sl_si91x_boot_configuration_t *boot_
 	}
 
 	boot_config->tcp_ip_feature_bit_map |= SL_SI91X_TCP_IP_FEAT_ICMP;
+	if (IS_ENABLED(CONFIG_WIFI_SILABS_SIWX91X_SNTP_CLIENT)) {
+		boot_config->tcp_ip_feature_bit_map |= SL_SI91X_TCP_IP_FEAT_SNTP_CLIENT;
+	}
 	boot_config->ext_tcp_ip_feature_bit_map |= SL_SI91X_EXT_TCP_IP_WINDOW_SCALING;
 	boot_config->ext_tcp_ip_feature_bit_map |= SL_SI91X_EXT_TCP_IP_TOTAL_SELECTS(10);
 

west.yml

@@ -235,7 +235,7 @@ manifest:
       groups:
         - hal
     - name: hal_silabs
-      revision: a0095a7ac356a04e12188bb563e6207594f8e6b2
+      revision: pull/100/head
       path: modules/hal/silabs
       groups:
         - hal